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Control.com topic...
Power Generation
Originally posted by BrownPaper on 20 April, 2014 - 11:34 am
Difference between throttle pressure and 1st stage pressure
New Replies:
Interesting. Is 1st stage pressure and Throttle pressure used to calculate throttle valve...
The first stage pressure on GE steam turbines is measured just downstream of the first stage...
Your understanding is correct for GE steam turbines....
Posted by GRJS on 22 April, 2014 - 8:56 am
Measuring winding resistance in a delta connected transformer.
Topic: Communications systems and equipment.
from the Forum department...
Modbus via microcontroller
Originally posted by Ed on 20 April, 2014 - 2:40 am
Communicating with device via Modbus RTU through a microcontroller.
New Replies:
By Lynn August Linse on 21 April, 2014 - 1:56 pm -
The "try a PC" option is always a wise first-step ... make sure you can trust your tools...
I'd suggest you first try an easy way to use a PC: http://www.ctrlterm.com/custom.htm Once the...
If it were me, I'd connect a PC with a serial port running a generic Windows Modbus 'test' master,...
Topic: Power generation equipment control.
from the Control department...
SynGas Conversion Project
Originally posted by Abhishek on 17 April, 2014 - 5:20 am
Pointers for Syngas Conversion project in India
New Replies:
Abhishek... Has the Plant's SLD been presented? Regards, Phil...
> what type of conversion process is involved? For example is it: Thanks Phil for your...
Abhishek... what type of conversion process is involved? For example is it: a) Coal to Syngas? ...
Topic: Power generation equipment control.
from the Controls department...
Mark-VI Control System T-core Issue
Originally posted by srh on 10 April, 2014 - 6:49 am
Issue being faced on T-core of Mark-VI
New Replies:
Was reading this thread and one question comes to my mind. There was a mention of Lockout Relay...
Yes, technically T-controller is down. As regards time, PC is running on localized clock and...
Online replacement of VCMI can be done as the system is already running on R and S processors as I...
Thanks for the response BN. Yes, VCMI appeared to be the suspected culprit but i was not sure. ...
There are few of the alarms that you have mentioned has been faced by me and most of the time it is...
Topic: Power generation equipment control.
from the THERMAL GENERATION department...
exhaust spread
Originally posted by BBSALO on 18 April, 2014 - 4:51 pm
Why monitor the exhaust spread of a frame 9E gas turbine
New Replies:
Good answers, but the main question was, "Why do we have to take these readings?" The...
A high spread usually means a flame loss in one combustor and it is cause of trip. There is a...
Hi BBSALO, The exhaust spreads parameters are required to protect the gas turbine from...
Topic: Power generation equipment control.
from the Operations & Maintenance department...
ACC Module on Mark V
Originally posted by Jose Sanchez on 19 April, 2014 - 10:58 pm
Library for instrutions about the keypad on ACC Module in <R> <C> procesors
New Replies:
Jose Sanchez, I'm a lot confused by your post. I'm not aware of any ACC module on any Mark V...
Topic: Power generation equipment control.
from the Forum department...
Turbine Controls
Originally posted by BrownBag on 30 December, 2013 - 7:18 pm
Difference in Turbine Control Modes
New Replies:
Thanks JFB that helped....
Originally posted by speedtronic on 19 December, 2008 - 10:04 am
What is the concept of Impedance protection for synchronous Generator(turbo/hydro)?
New Replies:
Sajad... are you referring to under-excited operation as related to Impedance-Protection? ...
hi... can you explain what the under impedance protection? thank you ...
Topic: Power generation equipment control.
from the Forum department...
Formula for steam flow in venturi tube
Posted by RAB on 18 April, 2014 - 6:27 pm
Required exact formula to calculate flow in a venturi tube
Topic: Power generation equipment control.
from the Instrumentation department...
Vitec Vibration probe
Originally posted by NVS on 17 April, 2014 - 12:27 pm
Installing Vitec 4033-500 in place of 4033-400 velocity transducer
New Replies:
NVS, I don't believe the impedance difference will affect the Mark IV, but you should be certain...
Impedance here referring to the electronic segment from your sensing element. 4033-500 is designed...
Topic: Power generation equipment control.
from the Control&Automation department...
Preselected mode for Mark V
Originally posted by Abbernardo on 3 April, 2014 - 4:49 pm
PreSelected mode when connected to grid and Mark V trip
New Replies:
K.R. Manish, What is FGMO, please? This is a good discussion, and as such, I hope you...
Dear CSA, With reference to the FGMO mode which you have described, I agree with you that it is...
Originally posted by Neo on 11 April, 2014 - 10:08 am
Increase in reactive power drawl at generation source.
New Replies:
Hi Neo, From what you have described, it sounds like that the generators are tripping due to...
Neo, I have read and re-read this post several times the past couple of days--mostly hoping...
Topic: Power generation equipment control.
from the measurments department...
Standard for temperature measurement
Posted by Mahmoud Sallam on 17 April, 2014 - 12:00 am
Location of temperature measurements (problems)
Topic: Power generation equipment control.
from the Forum department...
OT CALCULATION
Posted by jamal on 16 April, 2014 - 4:15 pm
OTC calculation
Topic: Power generation equipment control.
from the Forum department...
Windmill Alternator
Originally posted by Karsten Rasmussen on 11 April, 2014 - 3:04 pm
Control of windmill alternator load
New Replies:
Karsten Rasmussen... following are two ways to change speed: o control blade-pitch. o control...
Karsten Rasmussen, I think it's going to be pretty difficult to control the speed of a wind mill...
Topic: Power generation equipment control.
from the Engineering department...
Siemens marshaling wire
Posted by Raymond Mpofu on 14 April, 2014 - 8:16 am
Brand name of Siemens' 0.5mm thick marshaling wire
Topic: Power generation equipment control.
from the ABB Advant department...
ABB OS500 upgrade
Originally posted by Will P. on 5 March, 2014 - 5:46 pm
ABB OS500 upgrade to newer version HP B2600
New Replies:
Thanks All for your replies....
Topic: Power generation equipment control.
from the Maintenance department...
Mark V TMR servo commands
Originally posted by Brian on 12 April, 2014 - 9:35 pm
Difference in servo command in TMR panel for second stage nozzle
New Replies:
Brian, When did this problem start? After a servo-valve was replaced? This is not a simple...
Topic: Power generation equipment control.
from the control systems department...
Meaning of the "smiley symbol" in MARK V csp file
Originally posted by mhkhan on 11 April, 2014 - 10:58 am
In the csp file of MARK V control system, can any body tell me what the "smiley symbol" means in the BBL logics?
New Replies:
mhkhan, It's presumed you're referring SPECIFICALLY to the CSP.PRN file. It means EXACTLY...
Topic: Power generation equipment control.
from the Diesel Electric DP Vessels department...
Detection methods for AVR loss of sensing in weak networks
Originally posted by Yngve S on 18 March, 2014 - 3:12 pm
I am looking for ways to detect a loss of sensing voltage scenario on weak grids in offshore power systems installed in rigs and DP vessels
New Replies:
Hi Peter, Redundancy is not a bad idea at all. It will however require some point of merger,...
Topic: Power generation equipment control.
from the Automation department...
Newbie in SCADA world, need some directions
Posted by Ranier on 10 April, 2014 - 10:17 am
Newbie in Power System Automation, needs direction.
Topic: Power generation equipment control.
from the powerplant department...
Atomizing Pressure
Originally posted by ABDI on 20 March, 2014 - 7:03 am
When unit starts we always have low atomizing pressure alarm
New Replies:
ABDI, I haven't read GER-4189, so I can't comment on the specifics of the document. But I...
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